refactor(cli): deprecate --provider-url for --rpc-url

[saeta-eth]

This PR aims to deprecate --provider-url in favor of --rpc-url. If users use --provider-url, it will work but will display a warning message about the deprecation.

Closes https://linear.app/usecannon/issue/CAN-427/deprecate-provider-url-for-rpc-url

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Latest commit: 1463fed

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